1.Is not affected by temperature, humidity, air flow, such as dust, noise, light and dark, stronganti-jamming capability.2. microwave module is a pattern to launch out, no dead Angle blind area, wide coverage.3. microwave is reflected more easily in the process of transmission, sensitivity inside will be better,outdoor is a bit poor.4.can signal through the glass, obstacles such as trees, plastic (this will make the induction distance less)5. professional design planar microstrip antenna, low power consumption, ROHS, high productconsistency.Can modify the module according to your design.

1.Pay attention to the power supply related requirements, refer to the first one .2. If anybody there about 1m distance from the module.3.You shall test the module after 10seconds.4 It is very sensitive if test indoor. People need stay far away.Test it when no signal output 5 current is very weak when test.Too much current is easy to cause false positives.

1.We will use protective plastic and customized boxed to pack.(Enviroment friendly material)

2.We could do customized packing according to the quantity.

3.DHL/Fedex/UPS Express usually takes about 3-5 working days to the destination.And it’s about 5-8 days by EMS or TNT. Hongkong Post Air Parcel takes 7 to 10 days to ship to worldwide.

After-sale Service

1.Our Customer service will begin to track the product processing every day until you receive the goods and verify the product quality when you finish the payment.

2.Online via SKYPE; Also through mail, voice phone, message could contact us at any time!3.Follow up the case, record the entire process. Solution will be provide with 24 hours. Meanwhile,the problem complaint will be reported to QC department. QC will find defect from which department ,who is in charge to identify responsibility.4.Collect and record all the voice from each customer respond , suggestion, requirement.

5.All products have 1 year warranty.If there is no man-made problem,we will replace or repair for your freely.

Payment

1.We can accept T/T and ali trade assurance and western union and paypal order,the best way is direct paypal payment,you can choose yourself.If you want other payment terms,please let us know before when you order.

2.Make sure that you have completed all the details information like contact person,address,post code and telephone number when filling in your buyer’s information.